Square Root Calculator › Square root of 640
Square Root of 640
√640 ≈ 25.298221
640 is not a perfect square, so √640 is an irrational number that is approximately 25.298221. In simplified radical form, √640 = 8√10.
√640 lies between √625 = 25 and √676 = 26.
| Number | 640 |
| Square root (decimal) | 25.298221 |
| Simplified radical | 8√10 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 640 a perfect square?
No, 640 is not a perfect square, so its square root is irrational and approximately 25.298221.
What is the square root of 640 in simplest radical form?
√640 = 8√10 in simplest radical form.